.cssTest{
  color: red;
  background: blue;
  display: inline-block;
  .float{
    width: 100px;
    height: 100px;
    margin: 100px;
    float: left;
    background: red;
  }
}
.margin{
  padding: 10px;
  background: white;
  .box{
    height: 40px;
    width: 40px;
    background: yellow;
    margin: 10px;
  }
  .inlineBox{
    display: inline-block;
  }
}